Liquid nitriding is a subcritical surface enhancement process with one of the longest track records of success of any case hardening technology.
PVD coatings involve the deposition of thin (2-10 microns; 0.0001" – 0.0004") films on the surface of tools and components.
When super-hard, low-friction and high load-bearing thin film coatings are needed, PVD coatings and equipment from HEF USA are the solution. Reliable, environmentally-friendly and versatile, our advanced thin film coating technology represents a major development in surface engineering. PVD thin film coating systems are ideal for a broad range of components used in aerospace; automotive components; mechanical components used in industrial machinery and equipment; tooling applications - for cutting, forming & stamping, plastics and rubber molding, die-casting; medical instruments & devices and diverse decorative applications.
HEF's PVD coatings improve performance, add value, and solve critical challenges associated with friction & wear reduction. Some specific advantages of these coatings for industrial, automotive, and medical applications components are as follows:
HEF has the unique ability to design and customize the chemistry and metallurgical structure of wear-resistant PVD coatings for specific applications based upon a thorough understanding of the tribology of the component system under consideration - the wear and contact modes involved, operating parameters, base material properties, lubricant interactions etc. This customization ability derives from the fact that HEF has extensive tribological testing capabilities, PVD equipment manufacturing infrastructure, and a dedicated team of R&D and application engineers and decades of experience in providing surface engineering solutions for improving the performance of industrial and automotive components.
The table below shows a summary of HEF's standard coating portfolio along with properties such as hardness, typical coating thickness, deposition temperature, maximum usage temperature and typical applications. Parameters such as deposition temperature are important to ensure that the component being coated is not exposed to conditions that are above its tempering temperature and the base / core hardness is not compromised.
HEF also offers a range of PVD coatings for optical property enhancement, electro-magnetic shielding (PROCEM®) and the enhancement of aesthetics (such as imparting a metallic appearance on polymers and glass).
|CERTESS® N: Cr-N||1800||700||1 - 5||150 - 350||0.5||
|CERTESS® X: Crx-Ny||2200||700||1 - 5||150 - 350||0.5||
|CERTESS® Ti: Ti-N||2700||500||2 - 6||250 - 450||0.4||
|CERTESS® G:Zr-N||2700||500||2 - 6||250 - 450||0.4||
|CERTESS® T:Ti-Al-N||3000||800||1 - 5||300 - 450||0.3||
|CERTESS® SD:Ti-B-N||4500||800||1 - 5||300 - 450||0.3||
|WC-C based CERTESS® coatings||1500 - 2000||350||2 - 4||150 - 350||.2 - .25||
|2800 - 3200||350||2 - 4||150 - 350||.1 - .15||
The links below provide more detailed information regarding our PVD coatings portfolio. Please note that there are several other application specific PVD coatings that HEF offers - for additional details please contact us.